Session Date/Time: 29 Mar 2023 04:00

spring

Summary

The SPRING working group meeting covered several topics, including segment routing protection mechanisms, inter-domain intent-aware routing, and security considerations for SRv6 networks. Discussions focused on technical details, potential solutions, and the need for further review and feedback.

Key Discussion Points

SR Fixed Path Egress Protection: A proposal for a fast protection mechanism for fixed path segment routing. Feedback was solicited.
SRv6 Midpoint Protection: Discussion regarding a solution for midpoint protection in SRv6 networks, particularly in the context of IGP convergence and comparison to similar solutions for other data planes (SR-MPLS). It was suggested to merge this solution with existing midpoint protection drafts.
Segment Routing Aware Channel Programming: A new SR Nodal behavior proposal for application in layer 1 channel programming, especially for heterogeneous networks.
ICMP Extensions for IP Related Information Validation: A new ICMP extension proposal to validate IP-related information, closing the gap between control and data plane validation.
SRv6 Locator Distribution via DHCP: Discussion of a solution to distribute SRv6 locators via DHCP, intended to optimize provisioning in large-scale networks.
Multi-Homed Egress Protection: A mechanism for faster failover in multi-homed egress scenarios by carrying backup SIDs.
Security Considerations for SRv6 Networks: Presentation and discussion of a document outlining security considerations for SRv6. There was an active discussion and requests for detailed reviews.
Inter-Domain Intent-Aware Routing: Updates to a problem statement draft for inter-domain intent-aware routing using color. Focus was on service intent requirements and operational/OEM requirements. Working group adoption was requested.
Auto Edge Protection: An attempt to develop a mechanism to achieve fast failover times (50ms) for virtualized services with minimal configuration.
SRv6 Source Address Verification: Proposal to use SRv6 service We-Can-See as source address for tunnel endpoints.
SRv6/MPLS Service Interworking: Solution to reduce state in the interworking node, presented as option C and uses existing vendor capability in silicon.

Decisions and Action Items

SRv6 Midpoint Protection: Authors to consider merging their draft with existing SR-MPLS midpoint protection drafts to create a unified solution.
All Drafts: Participants encouraged to review the presented drafts and provide feedback to the authors, especially on the mailing lists.

Next Steps

Authors to incorporate feedback received during the meeting into their drafts.
Working group members to review and comment on the drafts.
Consider the security considerations document for working group adoption.